![]() "Capacitor sound" Electronics World July 2002 p12-18, september p16-22, October, p12-, November -47, December, Jan 2003 May 2011 Going the Extra Mile With Coupling Capacitors Article By Clive Meakins (enjoy the music)Įnoy the music Capacitor Musings (TNT audio_) Some more background reading from around the web from my notesīob Pease "What's all this soakage stuff" (there's a couple of other Bob Pease capacitor articles but ED makes them very hard to find!) As usual, the conclusions are heavily coloured by his personal opinions but if you can read past them it's a great article. Rod Elliot has a very good article on Capacitor Characteristics. However, there's very little genuine applied research on this topic Given the use of piezo effect in both buzzers and microphones.Ĭapacitors are just another place where lots of compromises (both theoretical and manufacturing) are made to get a workable result. If you can hear micro phonics from a capacitor then you have ears of an oscilloscope. Since production has moved to China, caps blowing up at 60% of there voltage tolerance. Don't think that fancy boutique caps are automatically good, lots of Russian and Polish NOS pio caps suck, including teflons be it bypassing, coupling, filter parallel, or crossover, Ampohm film caps are also horrible.Īlso the latest quality of QC of Wima's have gone to schit. A good example of quality caps are NOS Rifa's, Roedersteins and Wima black boxes. Ceramic disc capacitors have higher heat tolerances then standard MKP/MKS/MKT caps including Wima's. The best cap in the signal path is no cap. ![]() Wima's are actually quite ordinary MKP/MKS and MKT caps, no different to Vishay BC's and Vishay Roedersteins or Epcos or Rifa's. And yes stay away from ceramics.Īnswer to catman: No, they have there uses. Fortunately Jaycar stock a good range of them. This is a strict requirement of phono preamps. What these caps bring is high accuracy values and extreme stability. I have used MKT and MKP in my phono preamps always with good results. I also believe Jaycars "brown turds" their high voltage green caps (the brown ones if not clear) are excellent for audio work. Wimas are a good example of a quality cap. Edited Jby catmanĪn engineer acquaintance in Seattle who has design many of the tube amps I have built claims expensive audio caps are not required. Whilst I have some read technical data including measurements showing the at least technical superiority of polypropylene dielectric capacitors for example, in all honesty I can't say that I've heard any sonic difference! In the end, all that I can really say with any certainly is 'not' to use ceramic capacitors except bypassing applications. Which brings me to MKT's versus more exotic boutique types of audio capacitors. I have read such quite good technical articles on ceramic capacitors and capacitors and capacitors generally, and although ceramics are excellent in some circuit applications (mainly supply rail bypassing), they have well documented serious technical limitations when used elsewhere in audio (non linearity, michrophony etc), and certainly having heard their 'sound' for myself, I will never use a ceramic capacitor in a 'straight' audio circuit application ever again. The reason that I went to the WIMA's in the first place was because how bad ordinary ceramics sounded in comparisons and I only used them because they were all that the local electronics hobbyists stores sold in small picofarads values (mainly for phono preamp loading applications), and even in otherwise good audio kits! G'day all, some time ago I became a convert to WIMA polypropylene capacitors for audio use yet now I'm of the opinion that ordinary MKT polyesters are actually pretty good in all honesty.
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